| 基于DFIG可用无功裕度的风电场无功电压控制方法 |
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| 引用本文： | 崔杨,彭龙,仲悟之,尹佳楠.基于DFIG可用无功裕度的风电场无功电压控制方法[J].电测与仪表,2016,53(2):15-20. |
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| 作者姓名： | 崔杨 彭龙 仲悟之 尹佳楠 |
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| 作者单位： | 1. 东北电力大学电气工程学院,吉林吉林,132012;2. 中国电力科学研究院,北京,100192 |
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| 基金项目： | 国家自然科学基金项目(51207018)，吉林省科技发展计划项目(20130522174JH) |
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| 摘 要： | 本文提出一种新型双馈风电场无功电压控制方法,旨在满足风电场并网点电压要求的同时能够减少各机组机端电压的差异,以提高机组联网运行能力。该方法考虑了风电场的有功电压特性与双馈型风机的无功调控裕度,通过实时监测风电场升压站高压侧母线电压偏差能较准确地计算风电场无功需求;建立了以降低各机组机端电压差异为目标的无功控制模型,并利用遗传算法确定各机组无功输出分配方案。仿真算例验证了该方法能有效降低各机组机端电压差异,使并网点电压满足电网运行指标。
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| 关 键 词： | 风电场 无功电压控制 双馈风机 遗传算法 |
| 收稿时间： | 2014/9/20 0:00:00 |
| 修稿时间： | 2014/9/20 0:00:00 |
A Control Strategy for Reactive Power and Voltage of Wind Farm By Using DFIG Reactive Power Compensation Ability |
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| CUI Yang,PENG Long,ZHONG Wuzhi and YIN Jianan.A Control Strategy for Reactive Power and Voltage of Wind Farm By Using DFIG Reactive Power Compensation Ability[J].Electrical Measurement & Instrumentation,2016,53(2):15-20. |
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| Authors: | CUI Yang PENG Long ZHONG Wuzhi and YIN Jianan |
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| Affiliation: | School of Electrical Engineering,Northeast Dianli University,School of Electrical Engineering,Northeast Dianli University,China Electric Power Research Institute,Haidian District,northeast dianli university |
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| Abstract: | In order to meet the requirement on voltage of wind farm PCC, at the same time reduce the voltage difference at each wind generator end, a control strategy for reactive power that applying Genetic Algorithm is given. In time-scale, this strategy calculate reactive power demand of wind farm by monitoring the voltage of PCC, while considering the PV characteristics of wind farm and the reactive power ability of DFIG. In space-size, this strategy determine allocation scheme of each DFIG using Genetic Algorithm. Example shows that the proposed strategy can effectively reduce the voltage difference of each DFIG terminal, while keep the PCC voltage tracking of grid requirement. |
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| Keywords: | wind farm reactive power and voltage control DFIG genetic algorithm |
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